Portion of a display screen



FIG. 1 is a front view of an image for a portion of a display screenshowing our new design.

FIG. 2 is a front view thereof with region labeled “A” and annexed withbroken line to indicate where the enlargement of FIG. 3 is taken from;and,

FIG. 3 is an enlarged view for clarity of region A indicated in FIG. 2.

The broken line showing of a square, a display screen and the remainderof the taskbar in FIGS. 1, 2 are for illustrative purposes only and formno part of the claimed design. Additionally, the broken line circularregion within the taskbar button forms no part of the claimed design.

We claim the ornamental design for a portion of a display screen, asshown and described.